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LastIndexof support

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This commit is contained in:
Murphy Berzish 2016-06-15 18:45:01 -04:00
parent 7c8b882ae6
commit be5bf7fb80
2 changed files with 83 additions and 1 deletions
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4
src/smt/theory_str.h
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@ -114,6 +114,7 @@ namespace smt {
ptr_vector<enode> m_axiom_Contains_todo;
ptr_vector<enode> m_axiom_Indexof_todo;
ptr_vector<enode> m_axiom_Indexof2_todo;
ptr_vector<enode> m_axiom_LastIndexof_todo;
// hashtable of all exprs for which we've already set up term-specific axioms --
// this prevents infinite recursive descent with respect to axioms that
@ -196,6 +197,8 @@ namespace smt {
bool is_Indexof(enode const * n) const { return is_Indexof(n->get_owner()); }
bool is_Indexof2(app const * a) const { return a->is_app_of(get_id(), OP_STR_INDEXOF2); }
bool is_Indexof2(enode const * n) const { return is_Indexof2(n->get_owner()); }
bool is_LastIndexof(app const * a) const { return a->is_app_of(get_id(), OP_STR_LASTINDEXOF); }
bool is_LastIndexof(enode const * n) const { return is_LastIndexof(n->get_owner()); }
void instantiate_concat_axiom(enode * cat);
void instantiate_basic_string_axioms(enode * str);
@ -207,6 +210,7 @@ namespace smt {
void instantiate_axiom_Contains(enode * e);
void instantiate_axiom_Indexof(enode * e);
void instantiate_axiom_Indexof2(enode * e);
void instantiate_axiom_LastIndexof(enode * e);
void set_up_axioms(expr * ex);
void handle_equality(expr * lhs, expr * rhs);